A Steam client update is now available. To apply the update, click the File menu inside of Steam and then select "Check for Steam Client Updates...". The specific changes include:

Steam Client

• Enabled ClearType fonts if they are enabled in Windows
  
• Improved in-game status and play time tracking for games with launcher apps
  
• Improved in-game overlay input handling in a variety of games that previously did not capture or block keyboard input correctly
  
• Added D3D10 support to the in-game overlay
  
• Made voice chat requests ignored if you've blocked communications from the caller
  
• Fixed the original Half-Life not getting to 100% complete downloading when it should
  
• Improved server selection logic for Friends and VAC server connections
  
• Improved Steam network connectivity in the face of dropped UDP packets
  
• Fixed the overlay not recognizing the Tab key in some games (breaking the default hot-key)
  
• Improved Friends duplicate name collision detection